Prefab Labor Camp Manufacturer China: Sizing by Bed Count

A prefab labor camp is quoted in units and planned in beds, and the gap between the two is where budgets drift. Fix three numbers before you compare quotations: how many people sleep in one room, how many beds stay filled across shift changes, and how the camp is split by crew.

Those three numbers turn a headcount into a room count and a room count into containers. Without them you are comparing prices for camps of different sizes.

Wanbang manufactures prefab labor camp buildings for mining, construction, energy and infrastructure projects, and the modular camp building supplier page lists both what is included and what is not. The sequence below is the one to run with any manufacturer, including us.

1. A Labor Camp Is Sized in Beds, Not in Units

A labor camp exists to house a workforce, so the only number your project team owns is the number of people. The manufacturer sells units. Everything between those two figures is a design decision that has to be taken deliberately, because it sets the order quantity.

Take 1,000 people. At four per room that is 250 rooms; at six per room it is 167. The difference of 83 rooms is not a rounding error at quotation stage. It is a different order, a different container count and a different batch plan. Both room loads can be legitimate for the same headcount, because occupancy depends on shift pattern, crew structure, privacy expectations and what the client's own accommodation policy allows. None of that is a manufacturer's decision to make for you.

2. Fix Three Numbers Before You Request a Price

• Beds per room — the occupancy you will enforce on site, not the maximum a unit can hold. A unit built for six that runs at four leaves paid-for floor area doing nothing.
• Shift overlap — whether the outgoing and incoming crews are on site at the same time. A changeover day needs beds for both shifts; a clean rotation does not. If the camp has to absorb overlap, the bed count is set by the peak, not the average.
• Crew segregation — whether crews, trades, genders or subcontractors are housed separately. Segregation reduces the number of people who can share a room, which raises room count without raising headcount.

Send those three answers with the inquiry. A manufacturer that receives a headcount alone will quote a camp built on its own assumption, and the price will look competitive for reasons that have nothing to do with price.

3. From Beds to Rooms, Rooms to Containers

Once occupancy is fixed the arithmetic is simple, but it has to run on the unit you actually order. Wanbang publishes its 20 ft expandable unit specification at 5,900 × 6,300 × 2,480 mm expanded, 37 m² of floor area, loading two units per 40HC. The 40 ft models are published at 73 m² (11,800 × 6,300 × 2,480 mm) and 74.8 m² (11,800 × 6,220 × 2,480 mm), each loading one unit per 40HC.

Here is a worked example, with the assumptions stated first: one designated 20 ft unit per room, no corridor, stair or partition units added, no spare capacity, and fractions rounded up. On that basis, 200 beds at four people per room is 50 rooms, and at two 20 ft units per 40HC that is 25 containers. The same 200 beds at six per room is 34 rooms and 17 containers. Change any one assumption and the container count moves, so treat both figures as an illustration of the method, not as a verified product configuration. Have the manufacturer redo the arithmetic against the layout you will actually build.

Floor area per person is a division, not a standard. Thirty-seven square metres shared by four people is 9.25 m² each; shared by six it is 6.2 m². Those figures are gross unit area spread across occupants, which means they overstate the room a person actually gets, because internal partitions, storage, wet areas, circulation and furniture all take their share. Use the division to compare one room load against another, never to claim compliance with an occupancy rule. Minimum space per person is set by the destination authority or the client's own policy, and it should be confirmed in writing before the layout is frozen.

The bed count that goes into the order should be the one counted on the final layout drawing, not the one carried in a quotation or a specification sheet. Ask for the drawing at the occupancy you have chosen and count beds on it. If the camp needs wider rooms, a corridor or a partition between two bed groups, usable floor area drops and the container count rises. Weight is a separate confirmation: the 20 ft page gives 4,000 kg in one table and 3.5 t in another, so if the figure feeds a lifting plan, request the net weight of the exact configuration.

4. Sanitary and Welfare Blocks: Ask for the Ratio, Not a Rule

Ablution provision is the most common gap between a labor camp order and what the site actually needs, because it is bought as a separate block and often sized last. Wanbang's modular ablution block guide for worker camps covers the fittings and layout questions; the procurement question is simpler: what ratio of sanitary blocks to accommodation units did the manufacturer use on a comparable camp, and on what assumption?

Wanbang's Suriname road camp shipped with 200 container houses and 12 toilet houses, which the project record puts at about 17 accommodation units per toilet house. That figure came out of a single road camp, shaped by its own rotation, climate and site rules. Treat it as a worked example, not a benchmark, and ask any manufacturer to state the assumption behind the ratio it proposes for your camp.

The same applies to canteens, drying rooms, prayer rooms, first-aid space and site offices. Each is a building block with its own footprint, and each one reduces the number of beds that fit on a given site.

5. Loading, Batching and What Arrives First

Container count sets the batch plan, and the batch plan decides what the first crew sleeps in. A labor camp is usually mobilised before it is finished, so the first shipment has to be the part that makes the site habitable: accommodation plus a minimum sanitary block, not whichever units were easiest to produce.

For a steel plant workforce camp in Lagos State, Wanbang shipped 360 units: 340 quick-assembly houses and 20 flat-pack units. The project record gives about 14 quick-assembly units or about 10 flat-pack units per 40HQ, so the two groups load at different densities and cannot be counted as one. A programme with that mix lives or dies on batching, not on total capacity. Ask how many containers of your model can be loaded per week, how the batches are split, and what the opening shipment contains, and ask for those as dates rather than as a single lead time.

Delivery dates on a camp order depend on model, quantity, configuration and confirmation of the order, so a manufacturer that gives a firm date before those are fixed is guessing. What can be confirmed at inquiry stage is the sequence and the weekly loading rate.

6. What a Labor Camp Needs That a Dormitory Order Does Not

Labor camps are often temporary in a way dormitory orders are not: the project ends and the accommodation either moves or is sold. That changes three things.

• Repeated handling — ask for a written statement on whether the unit is suitable for dismantling and re-erection, what that statement is based on, what limits apply to the fixings, panel joints and wet areas, and what maintenance the unit needs between moves. Do not accept a cycle count or a test result unless the manufacturer can show the document behind it.
• Repair rather than replace — a camp that relocates needs spare panels, doors and fittings available as line items. Ask what the manufacturer can supply as spares with the original order.
• Site-independence — the more services are integrated into the unit, the less work moves to the next site and the more the unit weighs. Integrated wet areas and electrical fit-out travel well; foundations and utility connections never do.

Expandable and flat-pack units also ship differently, which changes both the container count and where the labour sits. An expandable unit travels folded and opens out on site with most fit-out done in the factory; a flat-pack or quick-assembly house travels as disassembled panels and is assembled on site, moving assembly labour to the site. Ask for the loading figure and assembly method per model rather than assuming one format wins on freight.

7. Six Numbers to Put in the Inquiry

• Headcount and peak — the average workforce and the maximum you will ever house, with the month the peak falls in.
• Beds per room — the occupancy you will enforce, per crew or per building type if it differs.
• Shift pattern — rotation length and whether changeover creates an overlap.
• Segregation rule — which groups cannot share a room or a block.
• Site conditions — access for a container truck, ground conditions, climate, and whether the camp will move.
• Target occupancy date — when the first crew has to sleep on site, which sets the batch plan.

A manufacturer can quote against those six numbers without inventing assumptions, and two quotations can then be compared line by line.

8. What a Labor Camp Quotation Should Show

A usable quotation names the unit model and quantity, the container count and loading per model, the sanitary and welfare blocks with their ratio, the scope exclusions, the documentation issued per model, and the batch sequence. Wanbang draws its standard boundary around the modular building units and their project documentation; site preparation, foundations, utilities and on-site installation sit outside standard building supply. Ask for the same statement in writing from any manufacturer, then check the quotation against it.

On quality, our published position is narrow: every unit is inspected at each stage, a unit that fails is sent back for rework before it leaves the factory, and third-party inspection is supported on request. On certification, ISO 9001, ISO 14001 and ISO 45001 are company management system certifications, and EU CE marking applies to relevant products. Neither is a product fire rating, so request the product-level document for the building you are ordering instead of treating a company certificate as one.

Documentation is issued per confirmed model: layout drawings, material lists, inspection reports and installation manuals. For a camp with four building types that is four sets, and the revision numbers on the set you receive should match the model you ordered.

Frequently Asked Questions

How many workers can a prefab labor camp unit house?

That is your occupancy decision, not a product specification. A 20 ft expandable unit offers 37 m² of expanded floor area, so four occupants give 9.25 m² each and six give 6.2 m² before partitions and furniture. Set the number against your own accommodation policy, then have the layout drawn at that occupancy and count the beds on it.

Is a labor camp different from a workforce camp?

The terms overlap and both describe temporary accommodation for a project workforce. Labor camp is the more common usage in construction and industrial projects, and is also written labour camp. What matters for procurement is the same either way: occupancy per room, sanitary ratio, container count and batch sequence.

Can a labor camp be moved to the next project?

Sometimes, but suitability has to come from the manufacturer in writing: whether the unit is designed for dismantling and re-erection, what limits apply, what maintenance it needs between moves, and what spares and second-installation materials are supplied. Ask what that statement is based on rather than accepting a cycle count.

What should the first container batch contain?

Accommodation plus a minimum sanitary block, so the first crew can live on site while the rest of the camp is erected. Ask for the batch composition as a list of building types with dates, not as a total lead time.